00001 /*This file is prepared for Doxygen automatic documentation generation.*/ 00015 /* Copyright (c) 2009 Atmel Corporation. All rights reserved. 00016 * 00017 * Redistribution and use in source and binary forms, with or without 00018 * modification, are permitted provided that the following conditions are met: 00019 * 00020 * 1. Redistributions of source code must retain the above copyright notice, this 00021 * list of conditions and the following disclaimer. 00022 * 00023 * 2. Redistributions in binary form must reproduce the above copyright notice, 00024 * this list of conditions and the following disclaimer in the documentation 00025 * and/or other materials provided with the distribution. 00026 * 00027 * 3. The name of Atmel may not be used to endorse or promote products derived 00028 * from this software without specific prior written permission. 00029 * 00030 * 4. This software may only be redistributed and used in connection with an Atmel 00031 * AVR product. 00032 * 00033 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED 00034 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00035 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE 00036 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR 00037 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 00038 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00039 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00040 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00041 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00042 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE 00043 * 00044 */ 00045 00046 #include "dsp.h" 00047 00048 #if defined(FORCE_ALL_GENERICS) || \ 00049 defined(FORCE_GENERIC_GEN16_RAMP) || \ 00050 !defined(TARGET_SPECIFIC_GEN16_RAMP) 00051 00052 // y = (0:L-1)*m + b 00053 void dsp16_gen_ramp(dsp16_t *vect1, int size, dsp16_t increment) 00054 { 00055 int i = 0; 00056 dsp16_t t, limit_t; 00057 00058 // Limit of the signal 00059 limit_t = DSP16_Q(1.) - increment; 00060 if ((((S32) increment) * ((S32) size)) < ((S32) limit_t)) 00061 limit_t = increment * size; 00062 00063 // Ramp loop 00064 for(t = DSP16_Q(0.); t < limit_t; t += increment) 00065 vect1[i++] = t; 00066 // Filling loop 00067 for(; i<size; i++) 00068 vect1[i] = DSP16_Q(1.); 00069 } 00070 00071 #endif 00072 00073 #if defined(FORCE_ALL_GENERICS) || \ 00074 defined(FORCE_GENERIC_GEN32_RAMP) || \ 00075 !defined(TARGET_SPECIFIC_GEN32_RAMP) 00076 00077 void dsp32_gen_ramp(dsp32_t *vect1, int size, dsp32_t increment) 00078 { 00079 int i = 0; 00080 dsp32_t t, limit_t; 00081 00082 // Limit of the signal 00083 limit_t = DSP32_Q(1.) - increment; 00084 if ((((S64) increment) * ((S64) size)) < ((S64) limit_t)) 00085 limit_t = increment * size; 00086 00087 // Ramp loop 00088 for(t = DSP32_Q(0.); t < limit_t; t += increment) 00089 vect1[i++] = t; 00090 // Filling loop 00091 for(; i<size; i++) 00092 vect1[i] = DSP32_Q(1.); 00093 } 00094 00095 #endif